Service Percentage
Calculator
Results
- First serve percentage
- 68
- First-serve points won (%)
- 76.470588
- Second-serve points won (%)
- 59.375
- Service points won (%)
- 71
Sport statistics results
| First serve percentage | 68 |
| First-serve points won (%) | 76.470588 |
| Second-serve points won (%) | 59.375 |
| Service points won (%) | 71 |
formula-map diagram
- First serve percentage
- 68
- First-serve points won (%)
- 76.470588
- Second-serve points won (%)
- 59.375
- Service points won (%)
- 71
Formula breakdown
Formula
1st serve % = first serves in ÷ service points played × 100= 68
Note
Simplified model: these are the standard published statistics computed from the numbers you enter. They ignore park factors, opponent strength, playing conditions and league adjustments, so results are indicative only and not an official rating.
More in Sport statistics
See all →Frequently asked questions
What does service percentage measure in tennis?+
Service percentage, often called first-serve percentage, is the share of first serves that land in play (are not faults) out of total first-serve attempts. It measures a server's consistency, not necessarily how effective those serves are once in play.
Why is first-serve percentage tracked separately from points won on serve?+
A player can have a very high first-serve percentage by hitting conservative, safe serves that are easy for the opponent to return, or a lower percentage from taking aggressive risks that are harder to return when they land. Tracking both statistics separately shows the tradeoff between consistency and aggression in a player's serving strategy.
What's considered a good first-serve percentage?+
Professional players typically aim for a first-serve percentage in the 60-65% range as a healthy balance between reliability and power. Percentages significantly above 70% often suggest a player is serving too cautiously and leaving pace on the table, while percentages well below 55% suggest excessive risk-taking or a mechanical issue.
Why does missing the first serve matter beyond just having to serve again?+
A second serve is typically hit with less pace and more spin for safety, since double-faulting loses the point outright, and this makes second serves statistically easier for opponents to attack. A low first-serve percentage forces a player into more second-serve situations, which generally have worse win rates for the server.
How is service percentage calculated when a player double faults?+
A double fault counts as a missed first serve (and a missed second serve) in the denominator, so repeated double faults will drag down first-serve percentage even though the point outcome (a lost point) is recorded separately from the percentage itself.